1. eFlow Solar Energy

    1. eFlow Solar Energy

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    Oakley, CA

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    eFlow Solar Energy

    4.5 (8 reviews)
    Open 8:00 am - 5:00 pm

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    14 years ago

    An awesome experience. Rich and company, professionalism personified. Great rates and quick service. 5 Stars *****

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    Sunlight Electri-Cal Solutions

    Sunlight Electri-Cal Solutions

    4.9
    (82 reviews)

    I can't say enough good things about Carlos Gomez from Sunlight Electri-Cal Solutions…read more I've been working on a non-standard solar setup using an EcoFlow Delta Pro Ultra X and EcoFlow Smart Home Panel 3, and finding a contractor who truly understood this type of system was incredibly difficult. I spoke with many contractors, and almost all of them sent salespeople who gave generic answers or tried to push cookie-cutter solutions that clearly didn't fit my setup. Carlos was completely different. From the moment he arrived, it was clear he wasn't a salesperson -- he's an engineer, and it shows. He took the time to deeply understand my system, reviewed actual spec sheets on the spot, and immediately identified issues that other contractors completely missed. Multiple companies told me Hyundai panels would work fine. Carlos checked the amperage limits, applied proper safety margin calculations, and clearly explained why those panels would not work with my EcoFlow system -- saving me from a costly mistake. He also walked me through: Proper panel selection within voltage and amperage limits Safe string configurations and series wiring How to maximize roof space while staying within code Permitting requirements I hadn't been told about before On top of that, Carlos identified critical code and safety requirements that no one else mentioned: Bollards required in the garage to protect battery units Correct battery placement to maintain required clearance from doors and entrances Heat detector requirements for battery installations in a garage These are all things that would have caused inspection failures later -- and Carlos caught them immediately. He spent well over an hour with me, climbed onto my roof to check for obstructions, inspected battery placement, reviewed wiring paths, and answered every question in detail without ever rushing me. What truly sealed the deal was how efficient and transparent the pricing process was. Carlos was able to turn around a detailed quote very quickly, and when I received it, I was honestly surprised -- it was a significant amount lower than every other quote I received, even though his evaluation was by far the most thorough. Given everything: His technical expertise The level of detail and care The ability to integrate with my existing system The fast turnaround And the much better pricing Choosing Sunlight Electri-Cal Solutions was a complete no-brainer. Carlos is knowledgeable, meticulous, honest, and genuinely passionate about doing things the right way. After meeting him, I completely understand why this company has such strong Yelp reviews. If you're in the Bay Area and need electrical or solar work done the right way, especially for a non-standard or custom system, I highly recommend Carlos and the team at Sunlight Electri-Cal Solutions.

    Carlos and team were great to work with, from proposal to permission to operate. I highly recommend…read moreSunlight Electric-Cal Solutions. I wouldn't call anyone else. Great value, great customer service. Couldn't have asked for a better experience.

    United Solar Electric

    United Solar Electric

    4.7
    (84 reviews)

    My wife and I purchased a new 19 panel solar system and Tesla Powerwall in mid 2025. The install…read morewas completed in October 2025. The crew and all of the people at United solar Electric were very responsive and professional. I would, and will do business with them again, (adding an additional battery). PG&E was a problem. PG&E was very slow with providing PTO (permission To Operate). We did not receive PTO until end of May 2026, over 6 months from the date when system was operational. PG&E will need to upgrade transformer (December ???) before we can send greater that 2000 watts back to the system. Right now, we have conditional permission to operate, limiting output to PG&E to 2.2 KW. To United Solar Electric's credit, they were with us the entire time dealing with PG&E and were just as irate with PG&E as we were. Thank you, United Solar Electric!

    My wife and I had a very concerning experience with United Solar Electric regarding their business…read moreethics and refund policies. We were interested in solar for our 1940s home and provided a deposit in good faith. However, after further inspection of our roof and the overall project viability, we decided not to move forward. When we requested our deposit back--before any equipment was ordered or installation began--the company initially refused, claiming it was 'passed' the point of a refund. It was a high-pressure situation where we felt they were trying to lock us into a contract we weren't comfortable with. While we did eventually receive our deposit back after pushing the issue, the initial refusal to return funds for work not performed was a major red flag. Homeowners should be very careful with the fine print here. If you are looking for a company that values transparency and customer comfort over just 'closing the deal,' I would suggest looking elsewhere. We're glad we didn't get stuck with them and are instead putting that money into improvements that actually fit our home.

    Your Energy Solutions

    Your Energy Solutions

    4.6
    (605 reviews)

    We could not be more delighted with the results we achieved working with the team at Your Energy…read moreSolutions. The many moving parts to our residential solar plus battery system, including the various entities, such as PG&E, Tesla, City inspectors, and the financial backers we opted to use all progressed seamlessly and, for us effortlessly, thanks to hard working individuals behind the scenes. In particular, Skyler could not have been more helpful, managing our project and acting as a point of contact. Others included David in sales who demystified the process, Varon who coordinated with the utility to ensure we met all requirements, and Gino, who collaborated with Maxwell Power (formerly HDM Renewable Finance), the clean-energy company that helped finance our residential system. On site, the design and install team did a great job keeping things simple. The entire system, including battery and thirteen panels, was installed according to Ramiros's expert design within just four hours. Good quality hardware was used to tie to the roof, which was inspected by our roofer and given a big thumbs up for not causing problems. But even before that, David our site survey tech, gave us the sense that all would proceed well, as he collected necessary data by drone, and made a favorable first impression with his personable approach. Toward the end of the multi-month process, which included time to get a new roof installed, we passed city inspection with YES tech, Dario, an extremely courteous young man, present to ensure we made it through that last step and PTO (permission to operate). YES has an excellent and well-deserved reputation because of these people and others who worked on our behalf. The company can do better automating some of the process, and to be fair, they say they are working on transitioning to a CRM software solution for this purpose. But, I can say that over a period of several months, I had excellent communication with many helpful people. Skyler in customer service was my primary contact and that made all the difference. My thanks to YES for helping us make this wonderful and complex project a reality. We love our new YES-backed system and look forward to working with the company again in the future.

    After a year of dealing with a non-functioning solar system, I finally found the right company to…read moreget everything back up and running. I can't say enough good things about the team, especially Andy, Carter, and Manny. From the very beginning, Andy was professional, responsive, and genuinely committed to finding a solution. He took the time to explain what was going on with my older system and walked me through the repair options without any pressure or sales tactics. Carter and Manny handled the installation schedule and repair work, and their knowledge and experience were immediately obvious. My solar system is over a decade old, and many companies would have simply tried to sell me a completely new system. Instead, they carefully diagnosed the problem, sourced the right equipment, and got my existing system operating again. Their attention to detail, workmanship, and pride in their work were impressive. What stood out most was the customer service. Every question was answered, communication was excellent throughout the process, and the entire team treated my home with respect. It's rare these days to find a company that combines technical expertise with genuinely outstanding customer care. The system is now producing power again, and I'm thrilled to see my solar investment back in action. If you have an older solar system that needs repair, or if you're looking for a company that truly stands behind its work, I highly recommend Your Energy Solutions and their entire team. Thank you all for your professionalism, honesty, and dedication. Five stars well deserved!

    Ambrose Solar

    Ambrose Solar

    4.7
    (271 reviews)

    My husband and I dug in our heels FOREVER, when it came to getting solar. There were all kinds of…read moresalespeople who came to our home on a monthly basis, and we just never had a real peace about being able to trust what we were being " sold", or told. My parents purchased solar from a HORRIBLE company that sounds a lot like 'SunFun'. After they passed away, and the house was sold...we were STILL making the monthly payments for over a year!!! That SunFun organization REFUSED to transfer the solar to the new homeowner, and eventually stopped taking or acknowledging our calls. It wasn't until we had to threaten the new homeowner with a lawsuit that SunFun finally transferred ownership. Due to this, we could not trust any of these solar companies...that is, until Kevin Bedard came to our home, and explained everything in great detail to my husband and I. He took the time to hear about our concerns, and he showed us how he truly cared. That same week, we spoke to two other families who shared their positive experiences about Ambrose Solar that made us feel that we would be in great hands. We had FINALLY FOUND A PEACE about getting solar on our home; KNOWING we would be in good hands, and we were ALL IN. It's been six months now, and we are beyond pleased with our solar panels, and the two Tesla batteries we have purchased. We are true fans, who have NOTHING but RAVE REVIEWS for this company. If you don't have solar, or if you need to add solar, Kevin Bedard is your man! and Ambrose is your company. Every employee has been amazing and helpful. In a world where customer service has taken a dump, this company has remained a class act. So again...if you are considering solar, call Ambrose, and tell them Albert and Rhonda sent you.

    My project is now finished and it's been about 6 months turned on and functioning- I'm still so…read moreglad that I did this with Ambrose Solar. Any home renovation project has bumps, and this one had its fair share: after initial install they monitor the systems production remotely to see if it's doing what it's supposed to/expected to, and my system was initially under-performing. They caught it and sent out a team to problem solve it, which took a couple tries, but they didn't drag their feet, they kept on it and kept at it and got it resolved. It was no fault of theirs, just a technology glitch. Core fear was that they would give up after a couple failures and leave me following up with them to get it done, but I never had to worry about that. I also did not end up liking where they placed the control box- it was something that was going to make future maintenance of my house trim problematic down the line. They willingly moved it up a few inches for me (and my only complaint was the team that did that didn't patch the original hole as efficiently as they should have. If I had understood the box placement better on the first pass that would never have happened, so this is a bit of a complaint of my own making.) Jon Landsman, who sold me the system, stayed with us the whole time tracking the project, checking in, and following through on every detail, every question, every concern. He never made me feel like the demanding diva that I am, was always prompt and gracious! The bottom line is that start to finish, even with a few bumps in the road, I have zero question that this is a company that legitimately cares about doing what is right. The culture of deeply valuing customer service that they have built is unmatched by many businesses these days. I am SO pleased, and SO impressed, and I can promise that you will be too!

    East Bay Power Systems

    East Bay Power Systems

    4.7
    (93 reviews)

    The product is good, the process left us wanting…read more Eric, David, Jose and the crew did an excellent job. My frustration was with the post installation process. I got answers from Darlene that did not make sense. Sometimes her computer was down other times her phone was down. Sometimes she would call to give me a message only to realize that she had called the wrong customer. Did not enjoy working with her. Finally, Kara engaged and we got the Permission to Operate about two months after the install. Supposedly Jeff (the Business Owner) is no longer with the company and has gone back East, so not sure who is leading their future efforts. For future customers: hang on to a portion of the payment till the Permission to Operate is received not just the installation.

    I was hoping my interactions with this business would be positive, but it was not. I spoke to Jeff…read moreand unfortunately he was unprofessional and discourteous. I provided the necessary information for my solar installation (including usage and current costs), but he was very combative when it came time to discuss my project. He refused to discuss a power purchase agreement, instead he tried to force an outright solar panel purchase, which I made clear was not an option. He offered no apology and no clear explanations about his actions. Free advice: if you are not interested in the job, just say so politely. Don't be rude, discourteous, and unprofessional.

    Del Sol Energy

    Del Sol Energy

    4.2
    (54 reviews)

    Problems from installation...on. No communication. Company took many months to complete…read moreinstallation after re-scheduling several times. I was promised to be put on the installation calendar month after month. Employee was rude to my mother. Our system went offline because they didn't install something correctly. We were not informed and received a huge bill. Del Sol did re-imburse us for 1 month's bill. Was promised by the owner he would look at our system for issues, then didn't show up as scheduled. I recently had a leak in my pool solar system. I called the office to schedule a service call. Once again, I was told someone would return the call and get me on the calendar. It's been 7 weeks and no return call. Go figure! I would NOT recommend!

    Our Story: We got our panels installed in Nov 2022. We got…read morequotes from two other companies and looked online to a solar energy brokerage for more quotes. We got a recommendation for Del Sol from one of our friends that was happy with their process and service. We reached out to Elvin and he was able to send us over a proposal very quickly based on whatever tool they used to see our roof. He provided two options for our roof, a 19 panel configuration and a 21 panel configuration. We decided to go with the 21 panel configuration for our roof and it estimated putting us at 98% of total output. After looking at the cost of the system, we didn't think we would be able to get it for a couple of years, but Del Sol offers multiple financing options. We decided to use the local credit union for financing. After we decided on the configuration and got the financing locked down, the turnaround time was approximately three weeks. Which was a whole lot faster than we would have anticipated. Installation took a total of two days with the city inspector coming out the second day. After the installation, paperwork has to be submitted to PG&E to be turned on, which took about 10 more days. Bird proofing for our panels was part of the package and it was done a few days after the final install. Our Conclusion: So we've had our panels for about four months and are extremely happy with them. The process went extremely fast. Supporting local reputable companies are very important to the wife and I, for us it definitely felt like the process was very streamlined to the point of being overwhelming. Using reputable local companies for our home improvements has definitely paid off in spades. Del Sol already installed panels in our neighborhood and knew exactly what our HOA required. The permits were pulled in a timely manner, and inspection was scheduled and concluded on the final day of the install. The major hiccup we had was we wanted to get our roof. Inspected prior to the install. The installation team was very professional, and courteous to us during the install and checked in with us every day with what to expect for that day. The final solar manual was delivered by Elvin and he went over everything in it, which also included the app used to track the performance of your system. Everything was laid out and explained as far as all the warranty information and what to do when the county sent you that "home-improvement" letter. I shared our whole story for people that are just looking into getting solar and wanted to know what they might expect. If you're a Brentwood local, and you decide to go with Del Sol, you won't be disappointed. The quote was very comparable to all the others we received. Elvin's service and knowledge was outstanding and the installers were professional and efficient. Also being able to use a local credit Union for financing was an additional plus for us. Yes, I would recommend them for your solar system needs.

    eFlow Solar Energy - solarinstallation - Updated July 2026

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